lines drawn for the next four years. unity, immigration, and america's debt. up to 1 million are set to watch the president address the country from the capitol. the celebrations have already begun. ♪ baby, you're a firework >> as he reveals his vision for the country. the perils and promises ahead. and obama's agenda for america. >>> and good morning, america. we're live to you, right now, across the country. "gma" special inauguration coverage. magnificent morning here, for the celebration of our enduring democracy. there's the national mall right there. the crowd's starting to gather. some 800,000 expected today in the shadow of the washington monument and the capitol. there's the view the president will have, from high atop the capitol, right now. everyone, converging on the center of washington. there's the president and his family, just after 8:30 this morning. going to church services, st. john's episcopal church, across from the white house. reverend luis leon, the rector right there. four years ago, the presid